diff --git a/buildconf b/buildconf
index 416cd2fa70c264141278bf6b3106049fea207f60..cf7770823e09d92c0f50ebf156e91969d821e69b 100755
--- a/buildconf
+++ b/buildconf
@@ -277,6 +277,10 @@ for fname in .deps \
     libtool \
     libtool.m4 \
     ltmain.sh \
+    ltoptions.m4 \
+    ltsugar.m4 \
+    ltversion.m4 \
+    lt~obsolete.m4 \
     stamp-h1 \
     stamp-h2 \
     stamp-h3 ; do